Recording concatenation costs of most common acoustic unit sequential pairs to a concatenation cost database for speech synthesis
View Patent ↗A speech synthesis system can record concatenation costs of most common acoustic unit sequential pairs to a concatenation cost database for speech synthesis by synthesizing speech from a text, identifying a most common acoustic unit sequential pair in the speech, assigning a concatenation cost to the most common acoustic sequential pair, and recording the concatenation cost of the most common acoustic sequential pair to a concatenation cost database.
1. A method comprising:
synthesizing speech from a text;
identifying a most common acoustic unit sequential pair in the speech;
assigning a concatenation cost to the most common acoustic sequential pair; and
recording the concatenation cost of the most common acoustic sequential pair to a concatenation cost database.
2. The method of claim 1 , wherein the most common acoustic unit sequential pair does not have a cost recorded in the concatenation cost database prior to the recording.
3. The method of claim 1 , further comprising synthesizing the speech using the concatenation cost.
4. The method of claim 1 , wherein the concatenation cost database contains a portion of all possible concatenation costs associated with a list of acoustic units.
5. The method of claim 1 , wherein assigning the concatenation cost further comprises deriving an actual concatenation cost.
6. The method of claim 1 , wherein the concatenation cost comprises a weighted sum of subcosts across phones.
7. The method of claim 1 , wherein the concatenation cost database stores acoustic units in linear predictive coding parameters.
8. A system comprising:
a processor; and
a computer-readable storage medium having instructions stored which, when executed by the processor, cause the processor to perform operations comprising:
synthesizing speech from a text;
identifying a most common acoustic unit sequential pair in the speech;
assigning a concatenation cost to the most common acoustic sequential pair; and
recording the concatenation cost of the most common acoustic sequential pair to a concatenation cost database.
9. The system of claim 8 , wherein the most common acoustic unit sequential pair does not have a cost recorded in the concatenation cost database prior to the recording.
10. The system of claim 8 , the computer-readable storage medium having additional instructions stored which result in operations comprising synthesizing the speech using the concatenation cost.
11. The system of claim 8 , wherein the concatenation cost database contains a portion of all possible concatenation costs associated with a list of acoustic units.
12. The system of claim 8 , wherein assigning the concatenation cost further comprises deriving an actual concatenation cost.
13. The system of claim 8 , wherein the concatenation cost comprises a weighted sum of subcosts across phones.
14. The system of claim 8 , wherein the concatenation cost database stores acoustic units in linear predictive coding parameters.
15. A non-transitory computer-readable storage device having instructions stored which, when executed by a computing device, cause the computing device to perform operations comprising:
synthesizing speech from a text;
identifying a most common acoustic unit sequential pair in the speech;
assigning a concatenation cost to the most common acoustic sequential pair; and
recording the concatenation cost of the most common acoustic sequential pair to a concatenation cost database.
16. The non-transitory computer-readable storage device of claim 15 , wherein the most common acoustic unit sequential pair does not have a cost recorded in the concatenation cost database prior to the recording.
17. The non-transitory computer-readable storage device of claim 15 , having additional instructions stored which result in operations comprising synthesizing the speech using the concatenation cost.
18. The non-transitory computer-readable storage device of claim 15 , wherein the concatenation cost database contains a portion of all possible concatenation costs associated with a list of acoustic units.
19. The non-transitory computer-readable storage device of claim 15 , wherein assigning the concatenation cost further comprises deriving an actual concatenation cost.
20. The non-transitory computer-readable storage device of claim 15 , wherein the concatenation cost comprises a weighted sum of subcosts across phones.